<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>HelloWorld</title>
  <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
  <h1>HelloWorld</h1>
  <hr>
  <div id="app">
    {{count}}
    <p><button @click="add">add</button></p>
  </div>
  <button onclick="app.$destroy();">destroy</button>
  <script type="text/javascript">
  var app = new Vue({
    el:'#app',
    data:{
      count:1
    },
    methods:{
      add:function(){
        this.count++;
      }
    },
    beforeCreate:function(){
      console.log('1-beforeCreate 初始化之前');
    },
    created:function(){
      console.log('2-created 创建完成');
    },
    beforeMount:function(){
      console.log('3-beforeMount 挂载之前');
    },
    mounted:function(){
      console.log('4-mounted 挂载之后');
    },
    beforeUpdate:function(){
      console.log('5-beforeUpdate 数据被更新之前');
    },
    updated:function(){
      console.log('6-updated 被更新之后');
    },
    activated:function(){
      console.log('7-activated');
    },
    deactivated:function(){
      console.log('8-deactivated');
    },
    beforeDestroy:function(){
      console.log('9-destroyed 销毁之前');
    },
    destroyed:function(){
      console.log('10-destroyed 销毁之后');
    }

  })
  </script>
</body>
</html>